Symphony CMS Custom Datasource. Displays next month as param in the param pool.

data.next_month.php

<?php

require_once(TOOLKIT . '/class.datasource.php');

class datasourcenext_month extends Datasource{

        function about(){
            return array(
                    'name' => 'Next Month',
                    'author' => array(
                        'name' => 'Alexander Rutz',
                        'website' => 'http://animaux.de'),
                    'version' => '0.1',
                    'release-date' => '2017-05-02T12:00:00+00:00');
        }

        function grab(array &$param_pool = null){
            $year = Frontend::instance()->Page()->_param['this-year'];
            $month = Frontend::instance()->Page()->_param['this-month'];
            $date = mktime( 0, 0, 0, $month, 1, $year );
            $next_month = strftime('%m', strtotime( '+1 month', $date ));
            $next_months_year = strftime('%Y', strtotime( '+1 month', $date ));
            $param_pool['next-month'] = $next_month;
            $param_pool['next-months-year'] = $next_months_year;

        }
    }

?>